Radiant|Natural|GIA

1.51ct J SI1 Radiant Natural Diamond

ID • J/SI1 • GIA 1236729301

Certificate GIA 1236729301

Diamond specifications and retailer prices

From €2,421 EUR
As of November 2, 2026
Save €2,841 EUR (54%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €5,262 EUR at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1236729301. Listed at 8 retailers as of November 2, 2026, with prices from €2,421 to €5,262, a €2,841 spread on the same certified stone. NZ Jewellers lists it at €5,262. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
J
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle44.89°
Pavilion angle31.06°
OriginNatural
Grading LabGIA
CertificateGIA 1236729301
Dimensions7.31 × 5.60 × 3.89 mm
L/W Ratio1.31
Girdle conditionVery Thick
Key to symbols
Crystal, Feather, Needle, Indented Natural
Top View
7.31 mm5.60 mm1.51 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1236729301
Side View
Table 67.0%Crown 44.89°Girdle: ThickPavilion 31.06°Culet: NoneDepth 69.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: €5,262 EUR|Low: €2,420 EUR|High: €5,481 EUR|Avg: €3,216 EUR|-4.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 3€2,421 EUR
Retailer 5€2,468 EUR
Retailer 7€2,517 EUR
Retailer 4€2,614 EUR
Retailer 6€2,649 EUR
Retailer 8€2,848 EUR
Retailer 10€2,966 EUR
Retailer 9€3,107 EUR
Retailer 2€4,409 EUR
NZ Jewellers€5,262 EUR

35 data points across 10 retailers

8 retailers€2,421 EUR to €5,262 EUR

A
Cheapest Retailer
-
€2,421 EUR
A
Retailer 2
-
€2,468 EUR
View
A
Retailer 3
-
€2,517 EUR
View
A
Retailer 4
-
€2,614 EUR
View
Retailer 5
-
€2,649 EUR
View
Price last confirmed 9 days ago
Retailer 6
-
€2,848 EUR
View
Price last confirmed 31 days ago
B+
Retailer 7
-
€4,409 EUR
View
Most Expensive
B
NZ Jewellers
ba55ec91-1321-4ed6-b548-4f3c073efa7c · Nov 3
€5,262 EUR
$5,875 USD
View
7 more retailers have this diamond
Prices start from €2,421 EURSave up to €2,841 EUR

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.51ct Radiant
€2,421 EUR